Preparation method of Na0.3WO3 nanostructure of photothermal conversion material

A light-to-heat conversion material and nanostructure technology, which is applied in the field of preparation of light-to-heat conversion materials, can solve the problems of high requirements for reaction equipment and high production costs, and achieve the effects of high repetition rate, simple operation, and cheap and easy-to-obtain raw materials

Inactive Publication Date: 2014-05-07
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method requires high reaction equipment and high production cost. This paper mainly introduces a simple hydrothermal synthesis method to prepare Na 0.3 WO 3

Method used

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  • Preparation method of Na0.3WO3 nanostructure of photothermal conversion material
  • Preparation method of Na0.3WO3 nanostructure of photothermal conversion material
  • Preparation method of Na0.3WO3 nanostructure of photothermal conversion material

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Effect test

Embodiment 1

[0023] Weigh 0.2380g WCl 6 , 0.0240g NaOH, dissolved in 40mL ethanol, transferred to a 50mL reactor, and reacted at 180°C for 20h. Centrifuge, discard the supernatant, and wash the resulting solid to obtain a blue product, which is Na 0.3 WO 3 Nano-structure. Figure 1-Figure 3 A picture of the product obtained in this example. figure 1 (a) Explain the obtained Na 0.3 WO 3 It is assembled from bundles of nanowires of about 5nm. figure 1 (b) illustrates the growth of the self-assembled structure along the (001) direction (d 001 =0.38nm), and figure 2 Corresponding. image 3 It is the ultraviolet-visible absorption spectrum of the structure, which shows that the self-assembled structure has strong near-infrared absorption and is expected to be used in photothermal therapy.

Embodiment 2

[0025] Weigh 0.2380g WCl 6 , 0.0120g NaOH, dissolved in 40mL ethanol, transferred to a reaction kettle with a capacity of 50mL, and reacted at 180°C for 20h. Centrifuge, discard the supernatant, and wash the resulting solid to obtain a blue product, which is Na 0.3 WO 3 Nano-structure.

Embodiment 3

[0027] Weigh 0.2380g WCl 6 , 0.0120g NaOH, dissolved in 40mL ethanol, transferred to a reaction kettle with a capacity of 50mL, and reacted at 180°C for 24h. Centrifuge, discard the supernatant, and wash the resulting solid to obtain a blue product, which is Na 0.3 WO 3 Nano-structure.

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Abstract

The invention relates to a preparation method of a Na0.3WO3 nanostructure of a photothermal conversion material. The preparation method comprises the following steps: dissolving tungsten hexachloride WC16 and sodium hydroxide NaOH in ethanol, and then stirring to obtain mixed liquor, wherein the ratio of WC16, NaOH and ethanol is 1mol:(0.5-1.0mol):40ml; carrying out reaction on the mixed liquor for 20-24 hours under a condition of 120-180 DEG C, centrifugalizing and washing to obtain the Na0.3WO3 nanostructure. The maximum value of the near-infrared absorption spectrum of the product is close to the wavelength of the laser used, and light can be effectively converted into heat, so that the nanostructure can be used as a medicament for photothermal ablation therapy of cancer.

Description

technical field [0001] The invention belongs to the field of preparation of light-to-heat conversion materials, in particular to a light-to-heat conversion material Na 0.3 WO 3 Preparation methods of nanostructures. Background technique [0002] The current photothermal conversion materials mainly include metal-based photothermal conversion materials, carbon-based photothermal conversion materials, organic compound photothermal conversion materials, and semiconductor photothermal conversion materials. Metal-based photothermal conversion materials due to their high cost, carbon-based photothermal conversion materials due to their low photothermal efficiency, and organic photothermal conversion materials due to their susceptibility to photobleaching limit their applications. Na 0.3 WO 3 It is a photothermal conversion material of tungsten bronze compound. Among them, tungsten bronze is an empirical formula M x WO 3 non-stoichiometric compounds. Wherein M is usually an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G41/00B82Y40/00
Inventor 胡俊青张誉心李博陈洁
Owner DONGHUA UNIV
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